8221299 has 16 divisors (see below), whose sum is σ = 11345664. Its totient is φ = 5292000.

The previous prime is 8221277. The next prime is 8221313. The reversal of 8221299 is 9921228.

It is a happy number.

It is not a de Polignac number, because 8221299 - 2⁵ = 8221267 is a prime.

8221299 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8221219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12714 + ... + 13344.

It is an arithmetic number, because the mean of its divisors is an integer number (709104).

Almost surely, 2^8221299 is an apocalyptic number.

8221299 is a deficient number, since it is larger than the sum of its proper divisors (3124365).

8221299 is a wasteful number, since it uses less digits than its factorization.

8221299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778.

The product of its digits is 5184, while the sum is 33.

The square root of 8221299 is about 2867.2807675566. The cubic root of 8221299 is about 201.8274103364.

The spelling of 8221299 in words is "eight million, two hundred twenty-one thousand, two hundred ninety-nine".